Muzzle brake



FIG. 1 is a front isometric view of a first embodiment of a muzzle brake according to my design;

FIG. 2 is a rear isometric view thereof;

FIG. 3 is a right side elevation view thereof, the left side elevation view being a mirror image;

FIG. 4 is a right side elevation view thereof rotated 30° about the longitudinal axis of the muzzle brake with respect to FIG. 3, the left side elevation view being a mirror image;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a front isometric view of a second embodiment of a muzzle brake;

FIG. 8 is a rear isometric view thereof;

FIG. 9 is a right side elevation view thereof, the left side elevation view being a mirror image;

FIG. 10 is a right side elevation view thereof rotated 30° about the longitudinal axis of the muzzle brake with respect to FIG. 9, the left side elevation view being a mirror image;

FIG. 11 is a front elevation view thereof; and,

FIG. 12 is a rear elevation view thereof.

The broken lines illustrate portions of the muzzle brake that form no part of the claimed design. 

CLAIM We claim the ornamental design for a muzzle brake, as shown and described. 